Apparatus for automatically monitoring a constant current source

Details Apparatus for automatically monitoring a constant current source Apparatus for automatically monitoring a constant current source

1984-08-13

1985-10-29

Miller, Jr., George H.

Weighing scales

Self-positioning

Repositioning in response to deflection under load

7386261, 177210EM, G01G 700, G01L 108

Patent

active

045496234

ABSTRACT:
An automatic monitoring system for the constant current source in a balance having electromagnetic load compensation includes circuitry which generates a first current varying in dependence on the constant current and furnishes a digital signal indicative of the value of that current. A microcomputer is provided to compare the digital value to a reference value. If the comparison indicates that the constant current is outside of a given range of values, the microcomputer energizes the display to indicate the presence of an error.

REFERENCES:
patent: 3786678 (1974-01-01), Kunz
patent: 3786884 (1974-01-01), Allenspach
patent: 4159747 (1979-07-01), Realini
patent: 4189017 (1980-02-01), Strobel et al.
patent: 4245711 (1981-01-01), Kunz

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